APA

van den Beld A. W., de Jong F. H., Grobbee D. E., Pols H. A. & Lamberts S. W. (20001016). Measures of bioavailable serum testosterone and estradiol and their relationships with muscle strength, bone density, and body composition in elderly men. : The Journal of clinical endocrinology and metabolism.

Chicago

van den Beld A W, de Jong F H, Grobbee D E, Pols H A and Lamberts S W. 20001016. Measures of bioavailable serum testosterone and estradiol and their relationships with muscle strength, bone density, and body composition in elderly men. : The Journal of clinical endocrinology and metabolism.

Harvard

van den Beld A. W., de Jong F. H., Grobbee D. E., Pols H. A. and Lamberts S. W. (20001016). Measures of bioavailable serum testosterone and estradiol and their relationships with muscle strength, bone density, and body composition in elderly men. : The Journal of clinical endocrinology and metabolism.

MLA

van den Beld A W, de Jong F H, Grobbee D E, Pols H A and Lamberts S W. Measures of bioavailable serum testosterone and estradiol and their relationships with muscle strength, bone density, and body composition in elderly men. : The Journal of clinical endocrinology and metabolism. 20001016.